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201012212 = 2250253053
BaseRepresentation
bin10111111101100…
…11001111110100
3112000020110220202
423332303033310
5402424342322
631540220032
74660401302
oct1376631764
9460213822
10201012212
11a35144a5
125739a618
133284cc4b
141c9a7272
15129a9292
hexbfb33f4

201012212 has 6 divisors (see below), whose sum is σ = 351771378. Its totient is φ = 100506104.

The previous prime is 201012187. The next prime is 201012221. The reversal of 201012212 is 212210102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 195832036 + 5180176 = 13994^2 + 2276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201012193 and 201012202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25126523 + ... + 25126530.

It is an arithmetic number, because the mean of its divisors is an integer number (58628563).

Almost surely, 2201012212 is an apocalyptic number.

It is an amenable number.

201012212 is a deficient number, since it is larger than the sum of its proper divisors (150759166).

201012212 is a wasteful number, since it uses less digits than its factorization.

201012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50253057 (or 50253055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 201012212 is about 14177.8775562494. The cubic root of 201012212 is about 585.7884632153.

Adding to 201012212 its reverse (212210102), we get a palindrome (413222314).

The spelling of 201012212 in words is "two hundred one million, twelve thousand, two hundred twelve".

Divisors: 1 2 4 50253053 100506106 201012212